Add a parallax image behind a page entry header in Genesis - pure css solution. (You'll need to style your image to be tall enough to match the webpage header, so it is behind the main page header on scroll)

This snippet allows you to remove a post type, like pages, for instance, from the search results without removing any others (by default WordPress searches posts, pages, and attachments). This will also preserve any custom post types you might have that are searchable (like those from other plugins).

This shows everything, you can set a specific default (without changing the others) more simple with the example in the gist comments. See the defaults as listed in the (very useful) Genesis Docs Gary Jones maintains.

This places the post avatar in the entry header of feature posts (if you're using the grid loop plugin) and on single post pages. It also allows for co-author plus support, showing a different image when there is more than one author.

For use with the Scripts to Footer plugin, allows you to place specific scripts back in the head. Can be useful if you have scripts that have to live specifically in the head section and cannot live in the footer.

This allows you to use the built-in secondary sidebar as an alternate on one sidebar themes (you'll want to register a separate sidebar if you are using two sidebars in your theme layouts). This has a limited scope, I would recommend a plugin like Display Widgets if you are going to have a more complicated page-by-page application.

Remove category and tag taxonomies. Useful if you're not using the blog functionality of WordPress, including the taxonomies. Be sure to uncomment the other line if you're using Genesis to avoid errors.

This bit in your functions.php file will force specific settings for robots post meta. Change 'post' to a specific post type or replace with other conditional. This is handy for post types that you do not want to have single post pages included in search results, private pages, et cetera.